Malathion safety data

GHS hazards, precautions, first aid, handling and transport for Malathion. A classification summary, not a safety data sheet.

CAS 121-75-5Formula C₁₀H₁₉O₆PS₂

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

GHS classification

Pictograms, signal word and hazard classes of the GHS classification

Harmful or irritant

Hazardous to the environment

Signal word

Warning

Hazard classes and categories

Acute Tox. 4 (oral)
Skin Sens. 1
Aquatic Acute 1
Aquatic Chronic 1

Hazard statements

H codes grouped by type. Percentages show the share of classification notifications that report the statement

Health hazards

H302Harmful if swallowed.
H317May cause an allergic skin reaction.

Environmental hazards

H400Very toxic to aquatic life.
H410Very toxic to aquatic life with long lasting effects.

Precautionary statements

P codes for prevention, response, storage and disposal

Prevention

P261Avoid breathing dust, fume, gas, mist, vapours or spray.
P264Wash skin thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves, protective clothing, eye protection and face protection.

Response

P301 + P317If swallowed: Get medical help.
P302 + P352If on skin: Wash with plenty of water.
P321Specific treatment (see supplemental first aid instructions on the label).
P330Rinse mouth.
P333 + P317If skin irritation or rash occurs: Get medical help.
P362 + P364Take off contaminated clothing. And wash it before reuse.
P391Collect spillage.

Disposal

P501Dispose of contents and container in accordance with local regulations.

First aid

General first aid measures. Get medical advice if you feel unwell

If inhaled

IMMEDIATELY leave the contaminated area, take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used, if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

Skin contact

IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.

Eye contact

First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

If swallowed

DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, administer a slurry of activated charcoal in water and simultaneously call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital.

Handling, storage and disposal

Summaries only, follow the supplier SDS for your grade

Safe handling

Fire: NO open flames.

General: AVOID ALL CONTACT! FIRST AID: USE PERSONAL PROTECTION.

Inhalation: Use ventilation, local exhaust or breathing protection.

Skin: Protective gloves. Protective clothing.

Eyes: Wear safety goggles or eye protection in combination with breathing protection.

Ingestion: Do not eat, drink, or smoke during work. Wash hands before eating.

Storage

Store only in original packaging. Separated from strong oxidants and food and feedstuffs. Keep in a well-ventilated room. Store in an area without drain or sewer access.

Disposal

SRP: Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality, potential migration in air, soil or water, effects on animal, aquatic and plant life, and conformance with environmental and public health regulations. If it is possible or reasonable use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination. SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria.

Exposure limits and toxicity

Occupational exposure limits and toxicity data

OSHA PEL, 8-hour TWA: 15 mg/m³ (total dust)
NIOSH REL, TWA: 10 mg/m³
ACGIH TLV, 8-hour TWA: 1 mg/m³ (inhalable fraction and vapor)
IDLH: 250 mg/m3

Short-term exposure: The substance may cause effects on the central nervous system. Cholinesterase inhibition. This may result in convulsions and respiratory depression. The effects may be delayed. Medical observation is indicated. Long-term exposure: Repeated or prolonged contact may cause skin sensitization. Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms. This substance is probably carcinogenic to humans.

Transport information

UN dangerous goods classification for road, sea and air

UN number: UN 3018
Transport hazard class: 9
Packing group: III

Shipping rules depend on mode, quantity and packaging. Confirm the classification with the supplier SDS and your freight forwarder.

Supplier safety data sheets

SDS documents uploaded by suppliers who list this chemical

No supplier has uploaded an SDS for Malathion yet. Suppliers usually send one with their quote. Request quotes

Safety questions

Quick answers about handling Malathion safely

Is Malathion hazardous?

Malathion carries the GHS signal word "Warning". Main hazards: harmful if swallowed, may cause an allergic skin reaction, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

Which GHS pictograms apply to Malathion?

The GHS classification of Malathion shows 2 pictograms: GHS07 (harmful or irritant), GHS09 (hazardous to the environment).

What is the UN number of Malathion?

Malathion is transported under UN 3018, hazard class 9, packing group III. Check the supplier SDS and the current ADR, IMDG or IATA rules before shipping.

How should Malathion be stored?

Store only in original packaging. Separated from strong oxidants and food and feedstuffs. Keep in a well-ventilated room. Store in an area without drain or sewer access.

Where can I get the SDS for Malathion?

Ask the supplier for the safety data sheet of the exact grade you buy. Suppliers on CompoundList can attach their SDS to listings and send it with a quote. This page is a GHS classification summary, not an SDS.

GHS classification summary, not an SDS. Always check the supplier's SDS. Last updated 7 Oct 2026. Report an error

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